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Recent observations and theoretical progress made about the history of theEarth-Moon system suggest that tidal dissipation in oceans primarily drives thelong term evolution of orbital systems hosting ocean planets. Particularly,they emphasise the key role played by the geometry of land-ocean distributionsin this mechanism. However, the complex way continents affect oceanic tidesstill remains to be elucidated. In the present study, we investigate the impactof a single supercontinent on the tidal response of an ocean planet and theinduced tidally dissipated energy. The adopted approach is based on the lineartidal theory. By simplifying the continent to a spherical cap of given angularradius and position on the globe, we proceed to a harmonic analysis of thewhole planet's tidal response including the coupling with the solid part due toocean loading and self-attraction variations. In this framework, tidal flowsare formulated analytically in terms of explicitly defined oceanic eigenmodes,as well as the resulting tidal Love numbers, dissipated power, and torque. Theanalysis highlights the symmetry breaking effect of the continent, which makesthe dependence of tidal quantities on the tidal frequency become highlyirregular. The metric introduced to quantify this continentality effect revealsabrupt transitions between polar and non-polar configurations, and betweensmall-sized and medium-sized continents. Additionally, it predicts that acontinent similar to South America or smaller (30{\deg}-angular radius) doesnot alter qualitatively the tidal response of a global ocean whatever itsposition on the planet.

Can one hear supercontinents in the tides of ocean planets?